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SESK: Stuff Everyone Should Know · sesk.info/pilot-emergency-frequency-121-5

On a VFR cross-country and not talking to ATC, which frequency would you use in an emergency?

121.5 MHz, the emergency frequency.

  1. 122.5 MHz
  2. 128.725 MHz
  3. 121.5 MHz ✔

Why: 121.5 MHz is the VHF emergency frequency. Many ATC and flight service facilities listen on it, and the AIM encourages pilots to monitor it in flight.

Huh, didn't know that: Older analog emergency locator transmitters send a downward swept tone on 121.5 and 243.0 MHz.

The dad joke
Why did the radio see a doctor? It kept having frequency problems.
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Sources

  1. AIM 6-2 Emergency Services Available to Pilots https://www.faa.gov/air_traffic/publications/atpubs/aim_html/chap6_section_2.html
  2. FAA Private Pilot Airplane sample questions https://www.faa.gov/sites/faa.gov/files/training_testing/testing/test_questions/par_questions.pdf

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